Earth & Environmental Sciences
gas
88%
oil
88%
shale
69%
well
63%
cement (construction material)
59%
oil production
58%
oil well
58%
oil shale
57%
hydraulic fracturing
55%
fluid
51%
Permian
49%
gas well
47%
parameter
36%
hydrocarbon
36%
experimental study
33%
anchor
33%
petroleum engineering
32%
gas industry
32%
compressive strength
31%
effect
31%
water
30%
oil industry
28%
gas production
27%
permeability
26%
mechanical property
26%
imbibition
25%
hydrogen
24%
spacing
23%
evaluation
22%
feasibility study
22%
economic impact
22%
industry
20%
prediction
20%
screening
18%
petroleum industry
17%
physical property
16%
county
16%
sandstone
15%
rate
15%
geology
14%
economic analysis
14%
water utilization
14%
drilling
14%
productivity
14%
modeling
14%
drawdown
13%
matrix
13%
tomography
12%
curriculum
12%
geothermal energy
12%
method
12%
carbon
11%
petroleum
11%
additive
11%
viability
10%
gas reservoir
10%
reinforcement
10%
gas field
10%
viscosity
9%
crude oil
9%
simulation
9%
test
9%
water treatment
9%
economics
9%
program
9%
sensitivity analysis
9%
analysis
9%
student
8%
statistical analysis
8%
natural gas
8%
plan
8%
methodology
8%
hydraulics
8%
Engineering & Materials Science
Oils
100%
Shale oil
98%
Gases
91%
Recovery
83%
Produced Water
72%
Shale
70%
Petroleum engineering
70%
Cements
64%
Oil wells
45%
Hydrogen storage
43%
Hydraulic fracturing
34%
Engineering education
31%
Fluids
30%
Petroleum industry
30%
Waste utilization
29%
Compressive strength
28%
Crude oil
28%
Shale gas
27%
Fracturing fluids
27%
Doppler radar
27%
Hydrogen
26%
Core samples
26%
Water treatment
26%
Carbon capture
25%
Water
22%
Hydrocarbons
22%
Horizontal wells
20%
Nanofibers
20%
Teaching
17%
Waste disposal
17%
Drilling
17%
Proppants
17%
Well stimulation
17%
Curricula
16%
Liquids
16%
Visualization
16%
Adsorption
16%
Gas industry
15%
Aluminum oxide
15%
Polymers
14%
Geology
14%
Productivity
14%
Low permeability reservoirs
14%
Coal bed methane
13%
Water management
13%
Geothermal energy
13%
Industry
13%
Economic analysis
13%
Economics
13%
Seals
13%
Petroleum reservoirs
12%
Radar imaging
12%
Sandstone
12%
Air
12%
Data visualization
11%
Accreditation
11%
Two phase flow
11%
Monitoring
11%
Mechanical properties
11%
Machine learning
11%
Hydration
11%
Well spacing
10%
Sustainable development
10%
Anchors
10%
Data Analytics
10%
Big data
10%
Nanoparticles
10%
Multilayers
10%
Methane
9%
Design of experiments
9%
Enhanced recovery
9%
Capillarity
9%